I hope to switch between 2 UIViewController using UINavigationController. (AUIViewController, BUIViewController relate to UIView AView,BView)I hope to switch between 2 UIViewController usi
阅读背景：
是否可以使用UINavigationController但隐藏其导航栏（将其替换为自定义工具栏）并返回按钮
来源：互联网
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